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<head>
  <title>Bug 94048 - test install event.</title>
  <script type="text/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
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<p id="display"></p>
<div id="content" style="display: none"></div>
<pre id="test"></pre>
<script class="testbody" type="text/javascript">

  function simpleRegister() {
    var p = navigator.serviceWorker.register("worker.js", { scope: "./install_event" });
    return p;
  }

  function nextRegister(reg) {
    ok(reg instanceof ServiceWorkerRegistration, "reg should be a ServiceWorkerRegistration");
    var p = navigator.serviceWorker.register("install_event_worker.js", { scope: "./install_event" });
    return p.then(function(swr) {
      ok(reg === swr, "register should resolve to the same registration object");
      var update_found_promise = new Promise(function(resolve, reject) {
        swr.addEventListener('updatefound', function(e) {
          ok(true, "Received onupdatefound");
          resolve();
        });
      });

      var worker_activating = new Promise(function(res, reject) {
        ok(swr.installing instanceof ServiceWorker, "There should be an installing worker if promise resolves.");
        ok(swr.installing.state == "installing", "Installing worker's state should be 'installing'");
        swr.installing.onstatechange = function(e) {
          if (e.target.state == "activating") {
            e.target.onstatechange = null;
            res();
          }
        }
      });

      return Promise.all([update_found_promise, worker_activating]);
    }, function(e) {
      ok(false, "Unexpected Error in nextRegister! " + e);
    });
  }

  function installError() {
    // Silence worker errors so they don't cause the test to fail.
    window.onerror = function(e) {}
    return navigator.serviceWorker.register("install_event_error_worker.js", { scope: "./install_event" })
      .then(function(swr) {
        ok(swr.installing instanceof ServiceWorker, "There should be an installing worker if promise resolves.");
        ok(swr.installing.state == "installing", "Installing worker's state should be 'installing'");
        return new Promise(function(resolve, reject) {
          swr.installing.onstatechange = function(e) {
            ok(e.target.state == "redundant", "Installation of worker with error should fail.");
            resolve();
          }
        });
      }).then(function() {
        return navigator.serviceWorker.getRegistration("./install_event").then(function(swr) {
          var newest = swr.waiting || swr.active;
          ok(newest, "Waiting or active worker should still exist");
          ok(newest.scriptURL.match(/install_event_worker.js$/), "Previous worker should remain the newest worker");
        });
      });
  }

  function testActive(worker) {
    is(worker.state, "activating", "Should be activating");
    return new Promise(function(resolve, reject) {
      worker.onstatechange = function(e) {
        e.target.onstatechange = null;
        is(e.target.state, "activated", "Activation of worker with error in activate event handler should still succeed.");
        resolve();
      }
    });
  }

  function activateErrorShouldSucceed() {
    // Silence worker errors so they don't cause the test to fail.
    window.onerror = function() { }
    return navigator.serviceWorker.register("activate_event_error_worker.js", { scope: "./activate_error" })
      .then(function(swr) {
        var p = new Promise(function(resolve, reject) {
          ok(swr.installing.state == "installing", "activateErrorShouldSucceed(): Installing worker's state should be 'installing'");
          swr.installing.onstatechange = function(e) {
            e.target.onstatechange = null;
            if (swr.waiting) {
              swr.waiting.onstatechange = function(e) {
                e.target.onstatechange = null;
                testActive(swr.active).then(resolve, reject);
              }
            } else {
              testActive(swr.active).then(resolve, reject);
            }
          }
        });

        return p.then(function() {
          return Promise.resolve(swr);
        });
      }).then(function(swr) {
        return swr.unregister();
      });
  }

  function unregister() {
    return navigator.serviceWorker.getRegistration("./install_event").then(function(reg) {
      return reg.unregister();
    });
  }

  function runTest() {
    Promise.resolve()
      .then(simpleRegister)
      .then(nextRegister)
      .then(installError)
      .then(activateErrorShouldSucceed)
      .then(unregister)
      .then(function() {
        SimpleTest.finish();
      }).catch(function(e) {
        ok(false, "Some test failed with error " + e);
        SimpleTest.finish();
      });
  }

  SimpleTest.waitForExplicitFinish();
  SpecialPowers.pushPrefEnv({"set": [
    ["dom.serviceWorkers.exemptFromPerDomainMax", true],
    ["dom.serviceWorkers.enabled", true],
    ["dom.serviceWorkers.testing.enabled", true]
  ]}, runTest);
</script>
</pre>
</body>
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